EP3131727A1 - Hohlzylindrisches schraubteil mit gewindeausnehmung und verfahren zu seiner herstellung - Google Patents
Hohlzylindrisches schraubteil mit gewindeausnehmung und verfahren zu seiner herstellungInfo
- Publication number
- EP3131727A1 EP3131727A1 EP15720919.8A EP15720919A EP3131727A1 EP 3131727 A1 EP3131727 A1 EP 3131727A1 EP 15720919 A EP15720919 A EP 15720919A EP 3131727 A1 EP3131727 A1 EP 3131727A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw
- base body
- thread
- injection
- screw member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 11
- 238000002347 injection Methods 0.000 claims abstract description 60
- 239000007924 injection Substances 0.000 claims abstract description 60
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 230000008023 solidification Effects 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004641 Diallyl-phthalate Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 4
- 229920001567 vinyl ester resin Polymers 0.000 claims description 4
- 239000004640 Melamine resin Substances 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- 229920003180 amino resin Polymers 0.000 claims description 2
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/2622—Moulds having screw-threaded mould walls for moulding interrupted screw threads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/006—Non-metallic fasteners using screw-thread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0027—Gate or gate mark locations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
Definitions
- the present invention relates to a screw member having an annular cross section, such as a screw, a nut, a sleeve member, a pipe plug, a pipe connector or the like, which has a hollow cylindrical base body with an inner channel which is surrounded by a wall of the base body which has a thread wherein the body by a radial injection of a plasticized polymer mass containing fibers into a cavity of a mold through at least one injection opening of the mold and by a
- the thread may in particular be an external thread on the base body, wherein the radial injection of the fibers containing plasticized polymer mass takes place out of the inner channel, so that the
- Base body in the inner channel has at least one injection point.
- DE 10 2008 042 721 A1 discloses a sensor housing which can be produced, in particular, by means of a die-casting or injection-molding method, consisting of plastic or preferably of metal, with a base body and two pipe sections projecting from the base body. Of the pipe sections at least a first carries an external thread, which is interrupted in the circumferential direction by at least one recessed facet.
- housing at least two molds are needed, which together form the external thread of the pipe section. If at the same time they are to mold the sidewalls of the main body adjacent to the facets with the passages, they must be movable relative to each other in a direction perpendicular to the facets or parallel to the passages. The result of this is that each of the two molds each molds one half of a portion of the external thread extending between two facets.
- the shapes must therefore be very precisely coordinated with each other, in order to prevent that at the threaded portions of each of the boundary between the two forms corresponding burrs are formed, which affect the function of the thread.
- the burrs can not only make the thread stiff, they also cause the clamping force of a nut screwed not distributed over the circumference of the thread, but is selectively introduced at the Formgrat in the pipe section.
- a uniform, distributed over the entire circumference of the thread force application u. a. provided that the facet extends from a center plane parallel to the longitudinal axis of the second pipe section of the first pipe section on at least one side of this central plane substantially perpendicular to this. Since the facet extends in a plane, wherein it consists of a plurality of individual planar surfaces on the individual teeth of the
- Thread exists, the facet can be formed by a corresponding design of the inner wall of the mold. Radially injecting a plasticized polymeric mass containing fibers into the cavity of the mold.
- the claim-oriented structure of the known screw is that on the one hand a proportion of fibers which are oriented in the circumferential direction of the annular cross-section perpendicular to a longitudinal axis of the fferteüs, and on the other hand, a proportion of fibers which are oriented in the axial direction of the screw, each smaller than 50 percent.
- Thread lock but preferably is slightly smaller, so that the
- Thread locking protrudes beyond the flanks of the thread.
- the respective Nutverlauf can cross the threads in different angles or run parallel to the threads. Furthermore, it is possible that the respective course of the groove and the thread lock in the main body of the screw is directed in or against a screwing of the screw.
- a screw of the type mentioned is known from WO 2013/092234 A1.
- This document discloses a hollow cylindrical screw part and method for its production by which the screw part with increased strength, in particular with increased axial tensile strength, can be produced with technologically simple feasibility.
- the injection of a fibrous plasticized polymeric mass takes place radially through at least one injection opening out of the inner channel to the outside in a section or in a region of a section which does not abut a peripheral seal or the holder and / or locking of a the screw insertable plug part is used.
- the injection opening may preferably lie in a region which lies between a sealing and a holding region or between two holding regions.
- the injection through the injection opening can take place in a section or in a region of a section of the base body in which the wall of the body Main body has a maximum wall thickness, such. B. in a cylindrically shaped portion of the body, which serves to support and / or leadership of the plug part.
- a problem here is that by a locally different shrinkage behavior during solidification of the polymeric mass in the mold then at a later screwing the known screw in the
- the present invention has for its object to provide a screw of the generic type, which remains dimensionally stable during its assembly and having a uniform course of the mechanical stresses occurring in its interior after assembly in the body.
- this is achieved for the screw part in that a recess is provided in a region of the thread which, in each case-separated by the wall of the base body-faces the region of a injection point.
- this is inventively achieved in that in a region of the thread, which - each separated by the wall of the body - the region of the injection point opposite, created by inserting at least one core in the mold used for injection molding of the screw according to the invention a recess becomes.
- the recess or - in the presence of several Anspritzstellen - even more recesses can be generated by inserting suitable cores in the mold used for injection molding of the screw according to the invention.
- the cores can be arranged in such a way that undercuts in the shaped body geometry do not occur, whereby a uniform filling of the cavity in the tool is secured with the fiber-containing plasticized polymeric mass.
- So-called folding cores which are characterized by a multi-part, need not be used for this purpose.
- the technical problem solving according to the invention also takes into account the fact that the fibers of the solidified polymeric mass are less ordered in the area of the injection points than in other areas of the screw part.
- the inventively provided recess forms a thread interruption and thus represents an area in which the thread is not wearing. It is thus achieved that the thread only partially bears where the fibers have a higher degree of order and the threads thus have a higher stability.
- FIG. 1 is a perspective view of a preferred embodiment of a screw according to the invention
- FIG. 2 shows a further perspective illustration of the screw part according to the invention shown in FIG. 1 in a view from below, d. H. from its screw-in side,
- Fig. 2a shows an axial half section through that shown in FIGS. 1 and 2
- 3 is a perspective view of another preferred embodiment of a screw according to the invention.
- FIG. 4 shows the screw part according to the invention shown in FIG.
- Screw 1 such as a screw, a nut, a sleeve part, a pipe plug, a pipe connector or the like, an annular cross section.
- screw part in particular a nut, so a component with rotationally symmetrical, in particular with annular or at least partially annular cross-section shown.
- the screw part 1 has a base body 2, on which a thread 3 is located.
- the base body 2 has the shape of a hollow cylinder and thus has an inner channel 4 with a longitudinal axis, which is identified by the reference numeral XX.
- the inner channel 4 is surrounded by a wall 5 of the main body 2, on which the thread 3, in particular on its outer side, is located.
- this may preferably be a V-thread with an outer flattened shape, which with regard to the injection-molding technology
- the main body 2 of the screw 1 is produced or manufactured as a molded part in an injection molding process, wherein it is formed by a radial injection of a plasticized polymer containing plastic fibers in a cavity of a mold and by a subsequent removal from the mold after solidification of the polymeric mass.
- the injection into the cavity through at least one injection opening of the mold takes place radially in particular from the inner channel 4 to the outside.
- the tool can advantageously consist of steel, whereby its high heat capacity and thermal conductivity, a balanced and uniform, but at the same time highly effective temperature control can be ensured.
- the main body 2 of the screw 1 consists of a thermosetting or thermosetting polymeric matrix, are embedded in the fibers, wherein for the preparation of the matrix, in particular a plasticized polymer composition can be used which an epoxy resin (EP), an unsaturated polyester resin (UP), a vinyl ester resin (VE), a phenol-formaldehyde resin (PF), a diallyl phthalate resin (DAP), a methacrylate resin (MMA), a polyurethane (PUR), an amino resin such as a melamine resin (MF / MP) or a urea resin (UF ) contains.
- EP epoxy resin
- UP unsaturated polyester resin
- VE vinyl ester resin
- PF phenol-formaldehyde resin
- DAP diallyl phthalate resin
- MMA methacrylate resin
- PUR polyurethane
- an amino resin such as a melamine resin (MF / MP) or a urea resin (UF ) contains.
- the plasticized polymeric mass may contain a volume fraction of fibers in the range of 2.5 to 75 percent, preferably a mass fraction in the range of 30 to 70 percent, in particular 50, 60 or 65 percent by weight of glass fibers.
- the fibers may have a length in the range from 0.1 mm to 10 mm, preferably in the range from 0.2 mm to 0.5 mm, and an average diameter in the range from approximately 3 ⁇ m to 35 mm, in particular in a design as glass fibers pm, preferential wise in the range of 5 pm to 20 ⁇ , have.
- the injection into the cavity of the mold can be done with advantage in the tunnel, disc, ring or screen gating, where in the tunnel gate
- the injection into the cavity can be made by at least two injection openings, which are circumferentially distributed uniformly on the annular inner cross section of the molding.
- the basic body 2 of the screw part 1 according to the invention has at least one injection point A, in particular in the inner channel 4, due to its method of manufacture. In the illustrated preferred embodiment, however, three injection points or points A offset by 120 ° are provided. So it was a three-point sprue performed. According to the invention are the injection points A - separated by the wall 5 of the base body 2 - each recesses 6 in
- Screwing used 1 mold can be generated, the shape - in the respective plan view of the recess 6 seen - but rectangular and preferably flat.
- no cores need to be used in the tool as cores.
- the resulting by the use of cores recesses 6 may be in particular of the facets mentioned above
- the inventively provided recesses 6 thus preferably have both a bottom G, and side walls S.
- the Anspritzstellen A are preferably visually recognizable by z. B. slightly (ie in a range ⁇ 0.1 mm) can protrude from the rest of the wall. This is particularly clear from the illustration in FIG. 3. Also, the density due to the applied at the end of injection molding reprinting at the injection ports A slightly higher than in the adjoining locations, so that in any case, so even if they should not be visually recognizable, possibly by material engineering studies on the screw according to the invention. 1 , Especially by modern non-destructive analysis method, the possibility of a subsequent unique identification of the injection ports A is.
- the fiber orientation can -. B.
- the respective area of a recess 6 located opposite each injection point A should be larger than the area of the injection point A and cover these in a succession projection.
- the length L (FIG. 2) of the recess 6 extending in the axial direction XX may be, for example, at least 3.0 mm, with a width B (FIG. Fig. 1) of the recess 6 should assume at least a value of 3.0 mm.
- a wall region W of the inner channel 4, which surrounds a respective injection point A is formed recessed.
- the amount by which the inner wall of the screw part 1 in this wall region W springs back relative to the diameter D of the inner channel 4 can preferably not be selected smaller than the amount by which the respective injection point A protrudes with respect to the wall of the inner channel 4. It is thereby achieved that the injection points A, although they face the wall - but preferably with respect to their recessed area W - protrude, are arranged in alignment with the diameter D or even radially outward than the diameter D.
- the inventively provided in the region of the thread 3 recesses 6 can be arranged and dimensioned in the invention in particular such that they are in the range of non-load-bearing threads.
- These non-load-bearing threads are designated in FIG. 2a by reference numerals 3a and 3b. They have an outer diameter DA which is smaller than that of the outer diameter DA of the supporting threads 3c, 3d, 3e.
- the thread 3 should preferably have at least two supporting threads 3c, 3d, 3e, which not only have a larger outer diameter DA than the non-supporting threads 3a, 3b, but also over a by up to 0.15 mm to 0.3 mm , in particular by up to 0.27 mm, larger core diameter DK have, as it is the core diameter DK in the region of the non-load-bearing threads 3a, 3b.
- the recesses 6 can be arranged in particular in the region of the non-load-bearing threads 3a, 3b, their base G preferably lying at least in one plane, which is described by a tangent to the peripheral surface of the thread core diameter DK in this area. Particularly preferably, they should be recessed to a depth T below the peripheral surface of the thread core diameter DK in the region of the supporting threads 3c, 3d, 3e of up to 0.3 mm, in particular 0.1 mm, so that in the screwed state the base G the recesses 6 does not come into contact with a mating thread.
- a minimum depth T should be from this point of view z.
- a radially flared flange approach 8 are formed, which may have in particular a polygonal, in particular hexagonal, outer contour 9 for manual attack or attack a screwing.
- the collar on the flange approach 8 can be designed in particular as a disc. This prevents when
- the invention is not limited to the illustrated embodiments, but also includes all the same in the context of the invention embodiments.
- the recesses or recesses 6 may have a different shape and size than shown in the examples. Nevertheless, it is achieved that the screw 1 remains dimensionally stable during its assembly and after assembly in the base body 2 has a uniform course of the mechanical stresses occurring in its interior. Since the screw part 1 according to the invention - on the one hand by the recesses 6 in the region of preferably formed as external thread 3 thread 3 and on the other hand preferably by the recessed wall portions W in the inner channel 4 - preferably in the region of the injection ports A and their immediate environment - as well as - Fig. 4 shown - by one of the end face of the base body 2 of the screw 1 outgoing material recess 12 in the flange approach 8 a reduced
- the screw 1 according to the invention can - as shown in the drawing - at the free axial end of the body 2, for example, a support lug 10 having an annular groove 1 1.
- the larger accumulations of mass at the other end of the base body 2 pull out by their shrinkage during cooling, the material of the annular groove 1 different degrees, so that the annular groove 1 1 - and the very narrow inner area tolerated - the screw 1 are distorted.
- edges 7 of a hexagonal flange projection 8 each have a reflection of up to 30 °, in particular of 10 °, in order to be able to transmit a uniform torque to the screw part 1 according to the invention even with a possibly inclined fitting screwing tool.
- the invention has hitherto not been limited to the feature combinations defined in the independent claims, but may also be defined by any other combination of certain features of all the individual features disclosed overall. This means that in principle virtually every individual feature of the respective independent claim can be omitted or replaced by at least one individual feature disclosed elsewhere in the application.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014105584.5A DE102014105584A1 (de) | 2014-04-17 | 2014-04-17 | Hohlzylindrisches Schraubteil mit Gewindeausnehmung |
PCT/EP2015/058233 WO2015158805A1 (de) | 2014-04-17 | 2015-04-16 | Hohlzylindrisches schraubteil mit gewindeausnehmung und verfahren zu seiner herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3131727A1 true EP3131727A1 (de) | 2017-02-22 |
EP3131727B1 EP3131727B1 (de) | 2020-12-23 |
Family
ID=53055005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15720919.8A Active EP3131727B1 (de) | 2014-04-17 | 2015-04-16 | Hohlzylindrisches schraubteil mit gewindeausnehmung und verfahren zu seiner herstellung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3131727B1 (de) |
CN (1) | CN106232317B (de) |
DE (1) | DE102014105584A1 (de) |
WO (1) | WO2015158805A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017107756A1 (de) * | 2017-04-11 | 2018-10-11 | Voss Automotive Gmbh | "Kunststoff-Steckverbinder und Verfahren zu dessen Herstellung" |
CN111002533B (zh) * | 2019-12-05 | 2021-10-01 | 宁波天龙电子股份有限公司 | 保证带定位螺纹产品的螺纹起始点一致性的方法 |
CN112060553A (zh) * | 2020-07-27 | 2020-12-11 | 晋西工业集团有限责任公司 | 一种两端带螺纹非金属零件的压塑模具 |
DE102020134501A1 (de) | 2020-12-21 | 2022-06-23 | Voss Automotive Gmbh | Schraubteil mit ringförmigen Querschnitt |
DE102021112801A1 (de) | 2021-05-18 | 2022-11-24 | Voss Automotive Gmbh | Schraubverbindung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3384301B2 (ja) * | 1997-10-06 | 2003-03-10 | 豊田合成株式会社 | 長尺サンドイッチ成形品 |
JP4173053B2 (ja) * | 2003-06-02 | 2008-10-29 | 株式会社エンプラス | 射出成形樹脂歯車、射出成形樹脂スプロケット、射出成形樹脂プーリ、射出成形樹脂ローラ |
JP2007015291A (ja) * | 2005-07-08 | 2007-01-25 | Olympus Imaging Corp | 筒状部品 |
US9518848B2 (en) * | 2007-10-12 | 2016-12-13 | Ifm Electronic Gmbh | Sensor housing |
DE102008018514A1 (de) | 2008-04-12 | 2009-10-15 | Voss Automotive Gmbh | Verfahren zur Herstellung eines Formteils mit ringförmigem Querschnitt und Formteil nach einem solchen Verfahren |
DE202009005363U1 (de) | 2009-04-09 | 2010-09-02 | Voss Automotive Gmbh | Schraubteil |
DE102011056601A1 (de) | 2011-12-19 | 2013-06-20 | Voss Automotive Gmbh | Hohlzylindrisches Schraubteil und Verfahren zu seiner Herstellung |
CN103624935A (zh) * | 2013-11-12 | 2014-03-12 | 昆山市硕强信息咨询有限公司 | 一种解决产品表面缩水的模具 |
-
2014
- 2014-04-17 DE DE102014105584.5A patent/DE102014105584A1/de not_active Withdrawn
-
2015
- 2015-04-16 CN CN201580020316.XA patent/CN106232317B/zh active Active
- 2015-04-16 EP EP15720919.8A patent/EP3131727B1/de active Active
- 2015-04-16 WO PCT/EP2015/058233 patent/WO2015158805A1/de active Application Filing
Also Published As
Publication number | Publication date |
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WO2015158805A1 (de) | 2015-10-22 |
EP3131727B1 (de) | 2020-12-23 |
DE102014105584A1 (de) | 2015-10-22 |
CN106232317A (zh) | 2016-12-14 |
CN106232317B (zh) | 2019-08-13 |
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